Current state of the research in agile quality development

With the changing trends in software development methodologies since 1990's the focus is more on iterative incremental approaches for software development. One of such approach is “Agile Approach” also named as lightweight model for development. Agile is more about communication and collaboration between team members working on software project. For good quality software it's important to select the appropriate model for the development of software. Another factor that is important to be considered while model selection is that in what respect quality gets better if we choose either traditional or agile approach. Quality assurance techniques for traditional heavy weight development rely on inspections, reviews made at end whereas quality assurance techniques for agile light weight development rely on routine activities by teams. This paper aims to review various success factors of agile software development and various challenges faced in terms of assuring quality in agile.